Patents by Inventor ChoonKit Lim

ChoonKit Lim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for measuring the back EMF of a disc drive VCM
    Patent number: 6937427
    Abstract: An apparatus and method of measuring a back electromotive force (BEMF) voltage of a disc drive voice coil motor (VCM) is provided in which a temperature of the VCM is obtained. The BEMF voltage of the VCM is computed as a function of the temperature of the VCM.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: August 30, 2005
    Assignee: Seagate Technology LLC
    Inventors: LeeLing Tan, Xiong Liu, ChoonKit Lim, MuiChong Chai
  • Method and apparatus for measuring the back EMF of a disc drive VCM
    Publication number: 20040257695
    Abstract: An apparatus and method of measuring a back electromotive force (BEMF) voltage of a disc drive voice coil motor (VCM) is provided in which a temperature of the VCM is obtained. The BEMF voltage of the VCM is computed as a function of the temperature of the VCM.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Inventors: LeeLing Tan, Xiong Liu, ChoonKit Lim, MuiChong Chai